Analysis and calculation of high-frequency excitation de-icing for transmission lines based on electromagnetic and thermal coupling field
DOI：10.7667/PSPC180181
Key Words:transmission lines  high-frequency excitation de-icing  coupling field  ANSYS software  high-frequency excitation de-icing time
Author NameAffiliationE-mail
YUAN Xiaolei College of Electrical Engineering and Information, Changsha University of Science and Technology, Changsha 410114, China  
ZHOU Yusheng College of Electrical Engineering and Information, Changsha University of Science and Technology, Changsha 410114, China  
WANG Yongan College of Electrical Engineering and Information, Changsha University of Science and Technology, Changsha 410114, China 1042357886@qq.com 
XIONG Qiang College of Electrical Engineering and Information, Changsha University of Science and Technology, Changsha 410114, China  
WANG Xianjun College of Electrical Engineering and Information, Changsha University of Science and Technology, Changsha 410114, China  
MA Xiaohong Electric Power Research Institute of Guizhou Power Grid Co., Ltd, Guiyang 550000, China  
DAI Zhou Electric Power Research Institute of Guizhou Power Grid Co., Ltd, Guiyang 550000, China  
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Abstract:Ice accident is the important factor affecting the safe operation of transmission lines. According to the principle of high-frequency excitation de-icing of overhead transmission lines, a 2D finite element model considering the coupling of electromagnetic field and thermal field of transmission lines is established. Based on the corresponding coupling field boundary conditions, magnetic field and temperature field distributions of transmission lines are obtained and the Joule’s heat and Medium’s heat, as heat sources, calculated in thermal field analysis is coupled with temperature field. The finite element ANSYS software method is applied to calculate the distribution of the temperature of ice-covered transmission lines with the applied excitation time. Moreover, the influence of different external factors on the time of ice-melting with high-frequency excitation is investigated based on this simulation model. The research results provide a certain reference value for the application of high-frequency excitation deicing technology in transmission lines. This work is supported by National Natural Science Foundation of China (No. 51307009).
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